You mean like Weinstein, Spacey, and Singer?
When that time comes, I think companies and society will have to reach a consensus on how to deal with borderline cases (things uncouth but not illegal). Will society ostracize and black ball all cases, or pursue ways to rehabilitate people --like they rehabilitate drunk drivers, etc.
I haven't seen people get fired for just saying the wrong thing. These cases are mostly way beyond that. Some people have gotten accused (Affleck) but they have been brushed off as either not having evidence or not being serious.
This isn't "oops I made a mistake" behavior, it's predatory behavior and predators are hard to rehabilitate.